1. noun
a) A permanent road consisting of fixed metal rails to drive trains or similar motorized vehicles on.
Many railroads roughly follow the trace of older land - and/or water roads
b) The transportation system comprising such roads and vehicles fitted to travel on the rails, usually with several vehicles connected together in a train.
Railroads can only compete fully if their tracks are techically compatible with and linked to each-other
2. verb
a) To transport via railroad.
The Thatcherite experiment proved the private sector can railroad as inefficiently as a state monopoly
b) To operate a railroad.
The majority railroaded the bill through parliament, without the customary expert studies which would delay it till after the elections.
Wikipedia foundation.